Plastic material forming and smoothing device



Oct. 9, 1928.

' w. G. MANSUY PLASTIC MATERIAL FORMING AND SMOOTHING DEVICE Filed Feb.26, 1927 n v m rm W w -Vl- AU 1 I, 4 w/ w (n a 9 2. e E Q I 1, M B m M wa Q a a 9 1 .3 B H M, 4 Q w a i a. 5 4 a Z ,0. 1 J,

INVENTOR.

William Q- (74 ATTORNEY.

Patented Get. 9, 1928.

WILLIAM G. MANSUY, OF DETROIT, MICHIGAN.

PLASTIC MATERIAL- FQRMIN G AND SMOOTI'IING DEVICE. 7

Application filed Febr uary 26, 1927. Serial No. 171,097.

My invention relates to a new and useful improvement in a plast cmaterial smoothmg and forming device adapted for use particularly insmoothing cement and terrazzo floors and the like, which are made from aplastic material, and for use in smoothing tion with which there isformed a wallboard or base from the plasticmaterial'.

It is an object of the present invention to provide a device whereby thefloor and wall or base board may be easily and'quickly smoothed andformed, and whereby a uniform planal surface on the outside of the wallor base board may be provided. I Another object of the invention is, inaddition to the provision of a device where a saving of labor will beeffected, the provision of a device for this purpose whereby a saving ofmaterial may also be effected.

Another object of the invention is the provision of a device of thiskind which will be economical of manufacture, durable of struc-' ture,easy to operate and highly. eflicient .in use.

Other objects will appear hereinafter. The invention consists in thecombination and arrangement of parts hereinafter described and claimed.

The invention will be best understood by a reference to the accompanyingdrawings which form a part of this specification and in which, a

Fig. 1 is a. sectional view taken on line 11 of Fig. 4%. I

Fig. 2 is a front elevational view of the invention.

Fig. 3 is a top plan view ofthe'invention.

Fig. 4 is a fragmentary sectional view taken on substantially line H ofFig. 1.

As shown in the drawings, the invention is adapted for use in smoothingthe plastic material 9 which forms the floor of a room such as a bathroom or the like, in which there is a base or wall board 10 formed fromthe same plastic material and integral with the floor 9.

In the invention I have provided a frame comprising the side rails 11and 12, preferably made from angle iron, each of which is angularlyturned to provide the laterally projecting portion 13 at its upper endand angularly turned to provide, adjacent its lower end, the angularlyturned portion 14, which is again angularly turned as at 15 to extendparallel to the main body. Thes'e is particularly adapted, these floors,in conjunc- I angle irons are connected at their upper end by'a crossbeam 16 which is also preferably an angle iron, and which has its ends17 and 18 flared for purposes which will appear as the descriptionproceeds. The angularly turned portions 15 of these side rails areconnected by'the cross beam 19, projecting outwardly from which are theguide members20 and 21 which, when the device is in use, engages theface of the screed strip 22, the angle iron 19 resting on the upper/faceof this screed strip 22. Bolted, or otherwise suitably secured to eachof these side rails, at the lower end, is a trowel block 23, secured tothe undersurface of'which and extending around the rearward sidethereof, is a metallic plate 2% which forms a trowel on the block. I Asshown in Fig. 1, the rearward side of'the block is provided with therearwardly projecting nose 25. I

The device when constructed as described,

may be utilized for levelling the floor 9 and forming the base board 10,thus eliminating the necessity of handwork on this particularconstruction. The plastic material is deposited on the support which isintended to support the floor 9 and the device placed in position, asshown in Fig. 1, so as to press enough of the plastic materialbetweenthe trowel forming plate and the wall26 of the room.

The guide strips 20 and 21 will engage the face of the screed strip 22,as shown in Fig. 1, the angle iron 19 resting upon the upper surface ofthis screed strip. The angle iron" 16 engages the wall of the room andthe dedo I vice moved laterally so as to smooth the plastic materialforming the floor 9 and to form 7 and smooth the plastic materialforming the base or w'all board 10. Ordinarily in operation the nose 25will not be in engagement with the wall 26, as the guide strips 20 mustbe retained in engagement with the face of the screed strip. The screedstrip sill therefore determine the plane of the wall and the base board10, this beingdesirable on account of the depressions and rises in thewall 26. As the angle iron16 is drawn over the surface of the wall 26,the flared ends 17 and 18 will permit an easy and ready passage of thisangle iron along the wall, where a projection may be present on thewall. The frame therefore serves as a trowel frame and the trowelforming plates carried on the block will serve as trowels for levellingthe surfaces operated upon. Since the nose 25 does not engage the wall26, there particularly will be a slight amount 01' the plastic materialprojecting upwardly from the upper surface 27 of this base board whichmay be easily and quickly removed by a workman using his hand trowel.

In this way, I have provided a device which is quite durable and simplein its structure, which may be operated by unskilled labor, and producedas vfi ished a job as a skilled artisan now customarily performs whenworking by hand. A considerable saving in labor results. The finish thejob is far superior to the average job as now done, so that considerableadvantage results from the use of this device.

if desired, this trowel, of course, may be mounted centrally oi theframe or at any other position, but it has been proven from experiencethat the mounting of the trowel at each end of the frame permits the useof the device for smoothing the plastic material,

close against the end walls of the room and particularly in corners andthe like, thus reducing the hand operation to a minimum.

WVhile I have illustrated and described the preferred form of structure,I do not wish to limit myself to the precise details of struc tureshown, but desire to avail mysell' oil such variations and modificationsas come within thescope ot' the appended claims.

Having thus described my invention on what I claim as new and desire tosecure by Letters Patent is:

1. A device of the class described comprising a lramev having siderails; a block mounted on each of said side rails; an L shaped trowelforming member mounted on. each of said blocks; a guide member carriedby; said frame; and a nose on; the rearward side of said blockprojectingoutwardly from a vertically extending portion of said trowelforming member. Y

2'. A device of the class described, con'iprising: a frame a,horizontally extending troweli'orming member carried by said lrame;vertically extending trowel forming member carried by said frame, saidframe projecting beyondt-he engaging surface of said vertiing: a frame;a vertically extending trowel forming member carried by said frame; a

horizontally extending trowel iforming 111G111". ber carried by saidframe; and a smoothing member carried by said frame and pro ectingoutwardly beyond the engaging face of said vertically extending trowelforming member. 4. A device oil the class described, comprismg: a lrame;a vertically extending trowel forming member carried by said: irame; a

horizontally extending trowel forming member carried by said frame; asmoothing member carried by said frame and projecting outwardly beyondthe engaging face or said vertically extending trowel forming member;and a guide member carried by the outer side of said frame for engagingabutn'ient' and limiting withdrawal oi said vertically extendingtrowelforming member from said frame beyond a predetermined distance.

5. A device of the class described, compris ing: a frame having a pairof L- haped members the ends of each of the legs being angularlyoutwardly turned; a cross beam connecting the angularly turned upperends or said frame; a cross beam connecting the angularly turned lowerends of said. frame;

a guide strip carried by said second mentioned cross beam and projectingdownwardly below thelower surface oi said frame; a pair of blocks.secured to said traineuin spaced relation; a trowel member on the lowerend inner face of each or" said blocks; a projection on the inner faceoi each of said blocks extending beyond the upper edge of said trowelforming member on said face.

In testimony whereof if have signed the foregoing specification.

WVILLIAM G. MANSUY.

